Ignore the voices.
Sometimes, standing still is fine. We all need time to think and ponder our next move. But there's a difference between that and putting off doing something. Often we don't try because we're not sure what response we're going to get. But ask yourself, what's the worst that can happen? And when your mind comes back with every possible worst case scenario, do it anyway. The only difference between people who seem to be getting somewhere and those a bit stuck in the same old groove, is the first lot actually do something, whereas the second group just think about it. So, ignore the voices and try. The answer you get back might just surprise you.